package com.heima.article.service.impl;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.article.mapper.ApArticleConfigMapper;
import com.heima.article.mapper.ApArticleContentMapper;
import com.heima.article.mapper.ApArticleMapper;
import com.heima.article.mapper.AuthorMapper;
import com.heima.article.service.ApArticleService;
import com.heima.common.constants.article.ArticleConstants;
import com.heima.common.constants.message.NewsUpOrDownConstants;
import com.heima.common.exception.CustException;
import com.heima.feigns.AdminFeign;
import com.heima.feigns.WemediaFeign;
import com.heima.model.admin.pojos.AdChannel;
import com.heima.model.article.dtos.ArticleHomeDTO;
import com.heima.model.article.pojos.ApArticle;
import com.heima.model.article.pojos.ApArticleConfig;
import com.heima.model.article.pojos.ApArticleContent;
import com.heima.model.article.pojos.ApAuthor;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.pojos.WmNews;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;

@Slf4j
@Service
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {

    @Autowired
    private WemediaFeign wemediaFeign;

    @Autowired
    private AdminFeign adminFeign;

    @Autowired
    private AuthorMapper authorMapper;

    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;

    @Autowired
    private ApArticleContentMapper apArticleContentMapper;

    @Value("${file.oss.web-site}")
    String webSite;

    @Value("${file.minio.readPath}")
    String readPath;

    @Autowired
    GeneratePageServiceImpl generatePageService;

    @Autowired
    RabbitTemplate rabbitTemplate;

    /**
     * 保存或修改文章
     *
     * @param newsId 文章id
     */
    @Transactional
    @Override
    public void publishArticle(Integer newsId) {
        //查询并检查自媒体文章 wmNews
        WmNews wmNews = getWmNews(newsId);
        //封装ApArticle
        ApArticle apArticle = getApArticle(wmNews);
        //保存或修改article信息
        saveOrUpdateArticle(apArticle);
        //保存关联配置和内容信息
        saveConfigAndContent(wmNews, apArticle);
        // 文章页面静态化
        generatePageService.generateArticlePage(wmNews.getContent(), apArticle);
        //更新wmNews状态 改为9 并设置articleId
        updateWmNews(newsId, wmNews, apArticle);

        //通知es索引库添加文章索引
        rabbitTemplate.convertAndSend(NewsUpOrDownConstants.NEWS_UP_FOR_ES_QUEUE,apArticle.getId());
        log.info("文章发布成功，并发送索引库更新通知   文章id: {}",apArticle.getId());
    }


    /**
     * 修改自媒体文章
     *
     * @param newsId
     * @param wmNews
     * @param apArticle
     */
    private void updateWmNews(Integer newsId, WmNews wmNews, ApArticle apArticle) {
        wmNews.setStatus(WmNews.Status.PUBLISHED.getCode());
        wmNews.setArticleId(apArticle.getId());

        ResponseResult updateResult = wemediaFeign.updateWmNews(wmNews);

        if (!updateResult.checkCode()) {
            log.error("文章发布失败 远程调用修改文章接口失败， 不予发布 , 文章id : {} ", newsId);
            CustException.cust(AppHttpCodeEnum.REMOTE_SERVER_ERROR, "远程调用修改文章接口失败");
        }
    }

    /**
     * 保存关联配置和内容信息
     *
     * @param wmNews
     * @param apArticle
     */
    private void saveConfigAndContent(WmNews wmNews, ApArticle apArticle) {

        //添加配置信息
        ApArticleConfig apArticleConfig = new ApArticleConfig();

        apArticleConfig.setArticleId(apArticle.getId());
        apArticleConfig.setIsComment(true);
        apArticleConfig.setIsForward(true);
        apArticleConfig.setIsDown(false);
        apArticleConfig.setIsDelete(false);

        apArticleConfigMapper.insert(apArticleConfig);

        //添加文章详情
        ApArticleContent apArticleContent = new ApArticleContent();

        apArticleContent.setArticleId(apArticle.getId());
        apArticleContent.setContent(wmNews.getContent());

        apArticleContentMapper.insert(apArticleContent);


    }

    /**
     * 保存或修改文章信息
     *
     * @param apArticle
     */
    private void saveOrUpdateArticle(ApArticle apArticle) {
        //判断wmNews之前是否关联articleId
        if (apArticle.getOrigin() == null) {
            //无关联 新增article
            //保存问掌柜
            apArticle.setCollection(0);//收藏数
            apArticle.setLikes(0);//点赞数
            apArticle.setComment(0);//评论数
            apArticle.setViews(0);//阅读数
            save(apArticle);
        } else {
            //有关联 修改article
            //修改文章 删除之前关联的配置信息 内容信息
            ApArticle article = getById(apArticle.getId());
            if (article == null) {
                CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "关联的文章不存在");
            }

            updateById(apArticle);
            apArticleConfigMapper.delete(Wrappers.<ApArticleConfig>lambdaQuery()
                    .eq(ApArticleConfig::getArticleId, apArticle.getId()));


        }

    }

    /**
     * 封装ApArticle
     *
     * @param wmNews
     * @return
     */
    private ApArticle getApArticle(WmNews wmNews) {
        ApArticle apArticle = new ApArticle();
        //拷贝属性
        BeanUtils.copyProperties(wmNews, apArticle);
        apArticle.setId(wmNews.getArticleId());
        apArticle.setFlag((byte) 0);//普通文章
        apArticle.setLayout(wmNews.getType());//布局

        //远程查询频道信息
        ResponseResult<AdChannel> channelResult = adminFeign.findOne(wmNews.getChannelId());
        if (!channelResult.checkCode()) {
            log.error("文章发布失败 远程调用查询频道出现异常， 不予发布 , 文章id : {}  频道id : {}", wmNews.getId(), wmNews.getChannelId());
            CustException.cust(AppHttpCodeEnum.REMOTE_SERVER_ERROR, "远程调用查询频道出现异常");
        }
        AdChannel channel = channelResult.getData();
        if (channel == null) {
            log.error("文章发布失败 未查询到相关频道信息， 不予发布 , 文章id : {}  频道id : {}", wmNews.getId(), wmNews.getChannelId());
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "未查询到相关频道信息");
        }
        apArticle.setChannelName(channel.getName());
        //设置作者信息
        ApAuthor author = authorMapper.selectOne(Wrappers.<ApAuthor>lambdaQuery().eq(ApAuthor::getWmUserId, wmNews.getUserId()));
        if (author == null) {
            log.error("文章发布失败 未查询到相关作者信息， 不予发布 , 文章id : {}  自媒体用户id : {}", wmNews.getId(), wmNews.getUserId());
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "根据自媒体用户，查询关联作者信息失败");
        }

        apArticle.setAuthorId(Long.valueOf(author.getId()));
        apArticle.setAuthorName(author.getName());

        return apArticle;
    }

    /**
     * 查询自媒体文章
     *
     * @param newsId
     * @return
     */
    private WmNews getWmNews(Integer newsId) {
        ResponseResult<WmNews> newsResult = wemediaFeign.findWmNewsById(newsId);
        if (!newsResult.checkCode()) {
            log.error("文章发布失败 远程调用自媒体文章接口失败 文章id:{}", newsId);
            CustException.cust(AppHttpCodeEnum.REMOTE_SERVER_ERROR, "远程调用自媒体文章接口失败");
        }
        WmNews wmNews = newsResult.getData();
        if (wmNews == null) {
            log.error("文章发布失败 未获取到自媒体文章信息  文章id: {}", newsId);
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "未查询到自媒体文章");
        }
        //判断状态是否为4 或 8 如果不是  不处理
        short status = wmNews.getStatus().shortValue();
        if (status != WmNews.Status.ADMIN_SUCCESS.getCode() && status != WmNews.Status.SUCCESS.getCode()) {
            log.error("文章发布失败 文章状态不为 4 或 8， 不予发布 , 文章id : {}", newsId);
            CustException.cust(AppHttpCodeEnum.DATA_NOT_ALLOW, "自媒体文章状态错误");
        }
        return wmNews;
    }

    @Autowired
    ApArticleMapper apArticleMapper;

    /**
     * 根据参数加载文章列表
     *
     * @param loadtype 0为加载更多  1为加载最新
     * @param dto
     * @return
     */
    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDTO dto) {
        //1 参数检查
        // 页大小
        Integer size = dto.getSize();
        if (size == null || size <= 0) {
            size = 10;
        }
        dto.setSize(size);
        //频道
        if (StringUtils.isBlank(dto.getTag())) {
            dto.setTag(ArticleConstants.DEFAULT_TAG);
        }
        //时间
        if (dto.getMaxBehotTime() == null) {
            dto.setMaxBehotTime(new Date());
        }
        if (dto.getMinBehotTime() == null) {
            dto.setMinBehotTime(new Date());
        }

        //类型判断
        if (!loadtype.equals(ArticleConstants.LOADTYPE_LOAD_MORE) &&
                !loadtype.equals(ArticleConstants.LOADTYPE_LOAD_NEW)) {
            loadtype = ArticleConstants.LOADTYPE_LOAD_MORE;
        }
        //执行查询
        List<ApArticle> articleList = apArticleMapper.loadArticleList(dto, loadtype);
        //添加静态页面访问前缀
        for (ApArticle apArticle : articleList) {
            apArticle.setStaticUrl(readPath + apArticle.getStaticUrl());
        }

        //返回结果
        ResponseResult responseResult = ResponseResult.okResult(articleList);

        responseResult.setHost(webSite);
        return responseResult;
    }

    @Autowired
    RedisTemplate redisTemplate;


    /**
     * 根据参数加载文章列表
     *
     * @param loadtype
     * @param dto
     * @param firstPage
     * @return
     */
    @Override
    public ResponseResult load2(Short loadtype, ArticleHomeDTO dto, boolean firstPage) {
        if (firstPage) {
            //redis
            String articleListJson = (String) redisTemplate.opsForValue().get(ArticleConstants.HOT_ARTICLE_FIRST_PAGE + dto.getTag());
            if (StringUtils.isNotBlank(articleListJson)) {
                List<ApArticle> apArticles = JSON.parseArray(articleListJson, ApArticle.class);
                for (ApArticle apArticle : apArticles) {
                    apArticle.setStaticUrl(readPath + apArticle.getStaticUrl());
                }
                ResponseResult result = ResponseResult.okResult(apArticles);
                result.setHost(webSite);

                return result;
            }

        }
        return load(loadtype,dto);
    }
    }